Automatic train stop



March 30 1926. 1,578,984 J. w. GOSSETT- AUTOMATIC TRAIN STOP Y Filed Oct. 14, 1924 2 Shets-Sheet 1 [7.

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J. w. GbssETT AUTOMATIC TRAIN STOP Filed Oct. 14 1924 2 Sheets-Sheet 2 Richmond, in the county. of -\Vayne and State of'Indiana, have invented certain new;

Fatented Mar. 30, I

ED STATES PATENT, CE-E-" 7 JOHN Gossn'r'r, or'nrcnmoivn, INDIANA.

. AUToMA'rIc TRAIN s'ror'u Application filed October ,14, 1924. Serial no. 743,624,

To all. whom it ma yconaernl' I Be it known that I, JOHN W. Gossn'r'r, a citizen of the United States, residing at and useful Improvements in Automatic Train Stops; and I do hereby declare the following to be'a full, clear, and exact de' scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of this invention is the provision of means for automatically applying the brakes in the event of a car or other unit'of a train becoming derailed whereby i to check the speed before serious accident may result.

In accordance with the invention the pressure is automatically released from the train pipe of an air brake system to admit of instant and automatic application of the brake in the event of derailment, the safety means being of such construction as to admit of their application to rolling stock and air brake systems Withoutentailing special construction in the installation thereof.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

\Vhile the drawings illustrate an embodiment' of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted towithout departing from the spiritof the invention.

Referring to the "accompanying drawings- 7 forming a part of the application Figure 1 is a detail view-showing the application of the invention;

Figure 2 is a side view of the parts illustrated in Figure 1;

. Figure 3 is a sectional plan view on the line 3-3 of Figure 1;.

Figure 4 is a detail sectional view on the line 4-4 of Figure 3;

Figure 5-is a sectional view on the line 5-5 of Figure 4;

Figure 6 is an enlarged sectional view of the valve mechanism;

Figure 7 is a detail sectional view on the line 77 of Figure 6; and

Figure 8 is a fragmental sectionalview on the line 8-8 of Figure 6.

Corresponding and like parts arereferred to in the following description and designated in the several views of thedrawings by like reference characters.

The numeral 10 denotes a portion of the supporting frame of the bottom of arailway car whether designedfor freight or passen g'er service. The numeral 11 designates the track which together with the supporting frame 10 is illustrated to demonstrate the application of the invention.

The usual air line or train pipe of an air A transversely disposed bracket 18 atc tached to the supporting frame 10 and is strengthened by-braces 19. The trips 17 are mounted in thebracket 18 to have a free vertical sliding movement. connected at its lower'end to across piece A guide 20 is 21 which serves to' connect the lower ends of 1 the trips'17 and guides 20. vThe guides 20 have a limited vertical movement and are It isto be understood that the bracket 18 may be of any preferred construction best adapted for the purpose and location. The

crosspieces21 are conveniently positioned 'to engage the track rails in the event of'derailment thereby opening one or the other of the valves 15 whereby the air pipe is bled V freely 'movable vertically in the bracket 18. I a

or relieved of pressure which results in an automatic application of the brakes in the 5 usual way. lVhat is claimed is 1. Means for automatically brake of an air brake system, the same com prising a branch pipe connected withthe train line, a cross. pipe attached to the branch pipe and provided at opposite ends with release valves,the stems'of which have lateral extensions, vertically slidable trips normallydisengaged from said extensions, said extensions being in the pathof upward applying the i movement of the stems, vertically slidable guides having a limited movement, :cross' pieces connecting the lower ends of the respective trips and guides and adapted to make contact with a track rail in the event of derailment, and a mounting for the trip and guides.

2. Means for automatically applying the brake of an air brake system comprising a branch pipe connected with the train line,

said pipe being transversely disposed with respect to rolling stock, release valves for said pipe mounted 011 axes extending longi vertical movement of the trips, whereby upon derailment of rolling stock, the trips will be moved vertically against said' eXtenv sions to thereby open the valves.

3. Means for automatically applying the brake of an air brake system comprising a branch pipe connected with the train line,

said pipebeing transversely disposed with respect to rolling stock, release valves for said pipe mounted on axes extending longitudinally of the rolling stock, said valves having outward extensions, vertically movahie-trips normally disengaged from said eX- tensions, said extensions being in the path of vertiealmovement of the trips, whereby upon derailment of rolling stock, the trips will be moved verticallyagainst' said eX tensions tothereby open the valves, bodies mounting said valves and to which the eX- ha ust pipe directly leads, and supporting mean-s forsaid body and .for the trips, constitut i ng guid'es tor the latter.

In testimony whereof I my signature.

" JOHN W. GOSSETT. 

